tonizatio

tonizatio [CL tonus+-izare+-tio], (act of) chanting in musical tones, intoning. c1400 tonarii ‥ sunt ‥ necessarii ‥ quia librorum hujusmodi defectus in ~one psalmodie inter psallentes in choro frequenter discordancias disseminant (Vis. York) Fabr. York app. 244.